Leak Detection and
Testing with Hydrogen Tracer Gas
Hydrogen
is actually the lightest element in the universe. The gas is 15
times lighter than air, and its viscosity is only half that of air and helium.
Hydrogen spreads so easy throughout the test object, penetrates leaks more
readily and it vents away significantly easier than any other trace gas.
If you are concerned about background build-up, hydrogen tracer gas is the
gas to use. It is also the most inexpensive tracer gas you can get.
Hydrogen gas has a number of unique properties which make it an excellent
tracer gas for use in leak detection and testing:
• The lightest of all molecules
• Lowest viscosity of all gases (easy to fill, evacuate and dissipate)
• Low background (0.5 ppm)
• Environmentally friendly and renewable - ISO 14001
• Inexpensive
• Non toxic - non corrosive
• Non flammable (when diluted 5% in Nitrogen) - ISO 10156
Pure hydrogen should never be used as trace gas. We recommend a standard industrial grade mix of 5% hydrogen in nitrogen. This mix is inexpensive, non- flammable, easily available, and still holds the important features needed for using hydrogen as trace gas.
More info